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Relevant bibliographies by topics / Kosky

Academic literature on the topic 'Kosky'

Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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Journal articles on the topic "Kosky"

1

Severn, John R. "Opera-to-opera adaptation revived: Barrie Kosky and Elena Kats-Chernin’s Monteverdi Trilogie at the Komische Oper Berlin, instrumentation, localization and community." Journal of Adaptation in Film & Performance 15, no. 1 (March 1, 2022): 41–59. http://dx.doi.org/10.1386/jafp_00068_1.

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In 2012, Barrie Kosky opened his first season as head of the Komische Oper Berlin by staging adaptations of three Monteverdi operas. Alongside using more familiar forms of adaptation, Kosky commissioned Elena Kats-Chernin to adapt the scores, focusing on instrumentation. While opera-to-opera adaptation is comparatively rare today, it has a long and rich history. The article first proposes three categories of reasons for opera-to-opera adaptation in the past. It then sets Kosky and Kats-Chernin’s Monteverdi productions in the context of this largely forgotten history, arguing that a historical awareness allows the Monteverdi Trilogie to be understood in terms of continuity rather than rupture, and clarifies some of Kosky and Kats-Chernin’s approaches in terms of a vigorous but respectful engagement with opera and its place in the modern city, in terms of recuperating aspects of operatic reception now frequently lost, and in prompting a reconsideration of localization and community inclusion. The article argues that the combination of Kats-Chernin’s adaptation for a variety of western and non-western, classical and non-classical instruments, and the visibility of the instrumentalists, including migrant musicians, that Kosky’s staging enabled set the tone for Kosky’s tenure at the Komische Oper, especially in terms of community and inclusion.

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Kim, Yoon Sang, and Sung Young. "A Parameter Study for the Test Condition of Kolsky Bar Experiment." Applied Mechanics and Materials 752-753 (April 2015): 477–80. http://dx.doi.org/10.4028/www.scientific.net/amm.752-753.477.

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When the cross-sectional area of the specimen for the Kosky bar experiment (Split Hopkinson bar) is very small compared to the area of the input bar, most stress wave will be reflected and the signal detected by the strain gage attached on the output bar is very weak. The signal to noise ratio is very significant so that smoothing process is necessary to obtain meaningful results. To improve the design of the experiment, 2-dimensional finite element calculations are carried out for various specimen thickness and length and elastic stiffness of the bar. It is found that short specimen with large contact area and bar material with low stiffness give better results.

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Nunziato, Joshua. "In the Self's Place: The Approach of Saint Augustine. By Jean-Luc Marion. Translated by Jeffrey L. Kosky." American Catholic Philosophical Quarterly 88, no. 1 (2014): 182–84. http://dx.doi.org/10.5840/acpq20148818.

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Trabbic, Joseph G. "In the Self’s Place: The Approach of Saint Augustine. By Jean-Luc Marion. Translated by Jeffrey L. Kosky." International Philosophical Quarterly 55, no. 2 (2015): 259–62. http://dx.doi.org/10.5840/ipq201555240.

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Koski, Leena. "Yliopiston arviointiprosessit moraalisena sääntelynä." Aikuiskasvatus 25, no. 4 (December 1, 2005): 330–33. http://dx.doi.org/10.33336/aik.93654.

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”25 vuotta sitten pidettiin mielettömänä ajatusta yliopistojen arvioimisesta määrien ja aikojen perusteella, koska siten olisi sivuutettu tai unohdettu yksi yliopiston tärkeimmistä tehtävistä, ajattelun kehittyminen. Tänään pidetään mielettömänä olla niin tekemättä, koska siten sivuutettaisiin yksi yliopiston tärkeimmistä tehtävistä, tuottaminen.” Professori Leena Koski arvioinnin analyysiin keskittyneessä virkaanastujaispuheessaan 15.5.2005.

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Sansone, Vincenzo. "Nuevas formas de llevar una ópera al teatro. Un caso de estudio. La flauta mágica de la compañía 1927 y de Kosky: animación 2d, nuevas tecnologías digitales y estilo vintage." Con A de animación, no. 7 (March 1, 2017): 108. http://dx.doi.org/10.4995/caa.2017.7301.

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La ópera, un género que a menudo se asocia al pasado, está más viva que nunca. Gracias a la aportación de directores y experimentadores provenientes del teatro, la ópera se ha convertido en uno de los campos por excelencia para la experimentación contemporánea, sobre todo en relación con el uso de nuevas tecnologías. Una verdadera paradoja. Un ejemplo es la puesta en escena de La flauta mágica de Mozart de la Komische Oper de Berlín, concebida y realizada por la compañía británica 1927 y por el director australiano Barrie Kosky en 2012. Es una representación atípica y extraña que utiliza las nuevas tecnologías del “video project mapping” y, al mismo tiempo, las técnicas de animación 2D —dibujos hechos a mano— con la intención de fusionar estéticas del pasado, sobre todo la del cine mudo y la de los orígenes de la animación, con la contemporaneidad. La intención de este trabajo es analizar la puesta en escena de esta obra en relación con los problemas actuales de la representación de óperas de repertorio.

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Reynolds, Thomas. "Jeffrey L. Kosky, Levinas and the Philosophy of Religion. Bloomington and Indianapolis: Indiana University Press, 2001. xxiv+259 pp. $39.95 (cloth)." Journal of Religion 84, no. 2 (April 2004): 304–6. http://dx.doi.org/10.1086/421813.

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Caputo, John D. "Being Given: Toward a Phenomenology of Givenness. By Jean-Luc Marion. Translated by Jeffrey L. Kosky. Stanford University Press, 2002. 375 pages. $27.95." Journal of the American Academy of Religion 74, no. 4 (October 5, 2006): 986–89. http://dx.doi.org/10.1093/jaarel/lfl005.

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Sutherland, John. "Jules Kosky, Mutual friends: Charles Dickens and Great Ormond Street Children's Hospital, London, Weidenfeld & Nicolson, 1989, 8vo, pp. x, 245, illus., £14.95." Medical History 35, no. 4 (October 1991): 467. http://dx.doi.org/10.1017/s0025727300054387.

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Lezine, DeQuincy. "Out of Options: A Cognitive Model of Adolescent Suicide and Risk-Taking. By Kate Sofronoff, Len Dalgliesh, and Robert Kosky. UK: Cambridge University Press. 2005." Journal of Child and Family Studies 15, no. 2 (April 2006): 245–46. http://dx.doi.org/10.1007/s10826-005-9013-x.

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Dissertations / Theses on the topic "Kosky"

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Kosky, Tobias [Verfasser]. "Entwicklung einer gezahnten kraft- und formschlüssigen Verbindungstechnologie für die trockene Fügung von Konstruktionsbetonbauteilen / Tobias Kosky." Düren : Shaker, 2021. http://d-nb.info/1229779388/34.

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Dittrich, Petr. "Zobrazování datové kostky." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2009. http://www.nusl.cz/ntk/nusl-235497.

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The topic of the master's thesis is a concept and implementation of the prototype application TOPZ demostrating the data warehouse. All theoretical facts about the data storage space are discussed at first. It is also specified the areas of possible improvements of the data warehouse. The specification of requirements and concept of the demonstration application are described in the following part. Testing the performace of the data warehouse is discussed in last chapter.

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Mališ, Radim. "Evoluční řešení Rubikovy kostky." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2011. http://www.nusl.cz/ntk/nusl-237031.

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This thesis deals with an evolutionary solving of the Rubik's cube. The worldwide known puzzle has been for several decades not only a toy for children and adults, but also almost a lifestyle for crowds of fans and definitely a big challenge in the world of computation, where scientists seek to find an effective automated solution. The potential for its solution could also be borne by evolutionary algorithms. The author of this thesis has developed an application employing, apart from genetic algorithms, also many advanced technics, such as linear genetic programming or local search. The goal of this special technics is to make the evolutionary process more effective. There have also been made tests of the crossover, the population size and the mutation probability influence. All the tests have been statistically evaluated.

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Kollner, Aleš. "Evoluční řešení Rubikovy kostky." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2010. http://www.nusl.cz/ntk/nusl-237202.

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This thesis deals with solving of the Rubik's cube. It describes the Rubik's cube and the famous methods for its composition. The main goal of this work is to propose an evelutionary method that for any configuration of blocks will lead to its composition. The theis describes the problem encoding, the proposed evelutionary algorithm and its proper configuration and deployment. The achieved results are commented on and compared with other known mehtods in conclusions.

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Banaś, Jiří. "Rekonstrukce pohonu otáčení kočky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228002.

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The diploma thesis include improvement proposal of drive slewing 12,5t grabbing crane. Second part this work deal with causes which in the past lead to failure the supporting pole of grab crane by using FEM analysis. Detected causes are applied to new supporting pole of grabbing crane and comparison both results. In the last part of the thesis is constructional, technological and economical summary.

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Brzobohatý, Petr. "Mostový jeřáb - návrh jeřábové kočky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228909.

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The diploma work deals with design of lifting mechanism of overhead crane trolley with a load capacity 200 t. The main objective is design and analysis of selected components of lifting mechanism and components which are directly associated with lifting mechanism. Work includes design elements of a rope system, such as rope, rope drum, sheaves, sheave block, elements of the proposals of propulsion, such as engine, transmission, brake, coupling. The work contains also strength calculations of some components and drawing documentation.

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Tvrdoň, Jan. "Konstrukce jeřábové kočky mostového jeřábu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232187.

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This thesis deals with proposal hoisting device of travelling crab with lifting capacity of 20000 kg for placement in the scrap yard foundries. The main objective is design of bearing elements of cable system (choice of ropes, pulleys, rope drum), strenght calculation block and a proposal to operate the hoisting device (engine, transmission and brake). It also deals with the proposal propel cats (engine, transmission, brakes, wheel load). Drawing documentation contains a set of trolleys, cable drum assembly weldments and detail spigot cable drum.

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Vácha, Ondřej. "Testovaní charakteristiky proporcionální hydraulické kostky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400453.

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Goal of this thesis is to verify functions of hydraulic manifolds from new supplier, measure characteristics of pressure loss relative to flow rate and for proportional blocks also characteristics of flow rate relative to control voltage at constant inlet pressure. Verification will be carried out with proportional manifolds and on/off manifolds with different failure functions.

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Otevřel, Marek. "Rám kočky 330 t mostového licího jeřábu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232036.

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The topic of this diploma thesis is the frame of the foundry trolley crane 330/65/20t. The crane crab is used for handling with molten metal. The frame is analyzed by strength inspection and fatigue strength inspection. The process is according to ČSN EN 13001. The analyses are made by using finite element method on a beam and shell models. The diploma thesis was made in cooperation with the Královopolská a.s. company.

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Strommer, Bohumír. "Posouzení rámu kočky mostového magnetového jeřábu 15t 27,5m." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231190.

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The diploma thesis deals with crab frame of bridge magnet crane with lifting capacity 15t used in steel mill for handling billets. Thesis contains strength analysis and fatigue strength check of crab frame based on ČSN EN 13001. Strength analyses are made by using beam and shell models of finite element method. The diploma thesis was carried out in cooperation with Královopolská a.s. company.

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Books on the topic "Kosky"

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Kosinski, Jerzy N. The hermit of 69th Street: The working papers of Norbert Kosky. New York: Zebra Books, 1991.

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Kosinski, Jerzy N. The hermit of 69th Street: The working papers of Norbert Kosky. New York: Seaver Books, 1988.

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Len, Dalgliesh, and Kosky Robert, eds. Out of options: A cognitive model of adolescent suicide and risk-taking / Kate Sofronoff, Len Dalgliesh, Robert Kosky. Cambridge, UK: Cambridge University Press, 2005.

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Koske. Beograd: Tanes, 2000.

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Mihalkovič, Boris. Kocky l̕adu. Bratislava: Smena, 1988.

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Bicevski, Petre. Našite koski. Skopje: MM, 1993.

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Mětšk, Frido. Mato Kosyk. Budyšyn: Ludowe nakł. Domowina, 1985.

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Metsk, Frido. Mato Kosyk. Budysyn: Domowina, 1985.

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Mihalkovič, Boris. Kocky Lʹadu. Bratislava: Smena, 1988.

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Spahiu, Cevair. Koski i maslini. Skopje: Detska radost, 1998.

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Book chapters on the topic "Kosky"

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Farrell, Charlotte. "Contextualising Barrie Kosky in contemporary Australian theatre." In Barrie Kosky on the Contemporary Australian Stage, 24–40. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367809058-2.

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Farrell, Charlotte. "Barrie Kosky's King Lear." In Barrie Kosky on the Contemporary Australian Stage, 55–80. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367809058-4.

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Farrell, Charlotte. "Women of Troy." In Barrie Kosky on the Contemporary Australian Stage, 109–28. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367809058-6.

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Farrell, Charlotte. "The Lost Echo." In Barrie Kosky on the Contemporary Australian Stage, 81–108. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367809058-5.

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Farrell, Charlotte. "Conclusion." In Barrie Kosky on the Contemporary Australian Stage, 129–34. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367809058-7.

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Farrell, Charlotte. "“Where the imagination can run riot”." In Barrie Kosky on the Contemporary Australian Stage, 1–23. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367809058-1.

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Farrell, Charlotte. "“Exciting and raw, sweaty and nightmarish”." In Barrie Kosky on the Contemporary Australian Stage, 41–54. London: Routledge, 2021. http://dx.doi.org/10.4324/9780367809058-3.

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Prior, Yoni, and Matt Delbridge. "“Very Much a Laboratory”: Barrie Kosky and the Gilgul Ensemble 1991–1997." In Barrie Kosky’s Transnational Theatres, 31–57. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75028-2_2.

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McMahon, Jennifer A. "“Aesthetic Ideas”: Mystery and Meaning in the Early Work of Barrie Kosky." In Barrie Kosky’s Transnational Theatres, 59–80. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75028-2_3.

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Severn, John R. "Something for Everybody? Art, Community, the Unfamiliar, and Barrie Kosky at the Adelaide Festival." In Barrie Kosky’s Transnational Theatres, 81–104. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75028-2_4.

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Conference papers on the topic "Kosky"

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Dalkilic, Ahmet Selim, Suriyan Laohalertdecha, and Somchai Wongwises. "Experimental Research on the Similarity of Annular Flow Models and Correlations for the Condensation of R134a at High Mass Flux Inside Vertical and Horizontal Tubes." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-10238.

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This paper presents an experimental investigation on the usage of annular flow models and correlations valid especially for horizontal tubes to the downward annular flow in the vertical test section. Condensation experiments are performed at the mass flux of 340 kg m−2s−1 during co-current downward condensation of R134a in a vertical smooth copper tube having inner diameter of 8.1 mm and a length of 500 mm. The saturation temperatures are between 40–50°C, heat fluxes are between 12.8 and 45.36 kW m−2, average qualities are ranging between 0.76–0.95. The experimental apparatus are designed to capable of changing the different operating parameters such as mass flow rate, condensation temperature of refrigerant, cooling water temperature and mass flow rate of cooling water etc and investigate their effect on heat transfer coefficients and pressure drops. Considering Chen et al.’s annular flow theory on the heat transfer coefficients that are independent from tube orientation as long as annular flow exists along the tube length, the average predicted condensation heat transfer coefficient of the refrigerant is determined by means of the annular flow model of Kosky and Staub, and Von Karman universal velocity distribution correlations using interfacial shear stress proposed for horizontal and vertical tubes separately. Some well-known annular flow correlations generally used for horizontal tubes in the literature were compared with experimental condensation heat transfer coefficient obtained from vertical tube data during annular flow conditions in the test section.

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Yoon, Howard W., Debasis Basak, Richard L. Rhorer, Eric Whitenton, Timothy J. Burns, Richard Fields, and Lyle Levine. "Thermal imaging of metals in a Kolsky-bar apparatus." In AeroSense 2003, edited by K. Elliott Cramer and Xavier P. Maldague. SPIE, 2003. http://dx.doi.org/10.1117/12.488111.

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Chaudhry, M. S., R. Carrick, and A. Czekanski. "Finite Element Modelling of a Modified Kolsky Bar Developed for High Strain Rate Testing of Elastomers." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53723.

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Elastomers are finding a wide variety of dynamic applications in aerospace, automobile and biomedical industries. The response of these complex material is based on the loading conditions and the strain rate at which the loading is applied. To suit the designer’s requirement, there is an ever increasing need to characterize this application specific, dynamic behavior under high strain rates. The Kolsky bar apparatus, also known as the Split Hopkinson Bar, is the most common apparatus used to test engineering materials at strain rates between 100/s and 10000/s. In this paper a modified Kolsky bar to characterize soft material is numerically modeled using Finite Element Method. The focus of the study is to numerically analyze the modifications made to a conventional Kolsky bar to specifically test nonlinear hyperelastic, soft materials. The challenge for testing low strength materials is the impedance mismatch between the bar and specimen interfaces, which results in a very weak distorted signal. One of the solution is to use a hollow transmission bar instead of solid one. With the use of FEM it can be numerically verified that using a hollow bar increases the amplitude of the transmitted signal up to several times. It is known that the rise time of the elastic wave can be increased by using a copper pulse shaper. Different dimensions of pulse shaper are modeled and the effect on the incident pulse is analyzed. The main aim of this study is to provide a detailed numerical analysis on the testing parameters, and to model one way wave propagation in Kolsky bar experiment for hyperelastic materials. The constitutive equations used to model the parts of the apparatus are also discussed.

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Hannah, Thomas, Reuben H. Kraft, Valerie Martin, and Stephen Ellis. "Implications of Statistical Spread to Experimental Analysis in a Novel Miniature Kolsky Bar." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23976.

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Abstract Kolsky Bar systems are subjected to inherent system error as all measurement devices are. This is especially true in that as the bar diameter decreases, the system becomes more sensitive to errors such as friction and misalignment. In this work we present a technique for identifying and quantifying the error of a Kolsky system. We also present a method of generating statistically significant bounds for Kolsky systems so that anomalous or improperly executed experiments can be quantitatively identified. This method does not rely on the intuition of the experimentalist to identify an anomalous experiment. After presenting our method for error identification, a series of tests are performed on 2024Aluminum alloy samples. A method is then presented where the system error, as well as some error contributed by a variance in sample dimension, are removed from the calculated error related to the stress on the samples. The result shows the effective variance of the sample response is quite high in the elastic loading period, but reduces when plasticity dominates. This is attributed to the presence of high frequency content in the travelling elastic waves which cannot be accurately measured currently, but is effectively damped out when plastic deformation dominates.

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Sun, C. T., and C. Han. "Dynamic Mode I Fracture Toughness Test of Composites Using a Kolsky Bar." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/amd-25404.

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Abstract Mode I dynamic delamination fracture was studied with two polymeric fiber reinforced composites. Wedge insertion fracture test on a Kolsky bar (or split Hopkinson pressure bar) apparatus was conducted. A speed about 1,000 m/s of Mode I delamination crack propagation was achieved using high rates of loading. Dynamic fracture and crack propagation were modeled by the finite element method. Dynamic initiation fracture toughnesses of both composites S2/8552 and IM7/977-3 were obtained. For IM7/977-3, dynamic fracture toughness of IM7/977-3 associated with the high speed of propagating crack was examined. It is found that the dynamic fracture toughness of the delamination crack propagating at speed up to 1,000 m/s approximately equals to the dynamic initiation fracture toughness, which is again approximately equal to the static fracture toughness.

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Burns, Timothy J., Steven P. Mates, Richard L. Rhorer, Eric P. Whitenton, and Debasis Basak. "Effect on Flow Stress of a Rapid Phase Transition in AISI 1045 Steel." In ASME 2011 International Manufacturing Science and Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/msec2011-50229.

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New experimental data on AISI 1045 steel from the NIST pulse-heated Kolsky Bar Laboratory are presented. The material is shown to exhibit a nonequilibrium phase transformation at high strain rate. An interesting feature of these data is that the material has a stiffer response to compressive loading when it has been preheated to a testing temperature that is below the eutectoid temperature using pulse-heating than it does when it has been preheated using a slower heating method. On the other hand, when the material has been pulse-heated to a temperature that exceeds the eutectoid temperature prior to compressive loading on the Kolsky bar, it is shown to exhibit a significant loss of strength. A consequence of this behavior is that fixed-parameter constitutive models, such as the well-known Johnson-Cook model, cannot be used to describe this constitutive response behavior. An argument is made that the phase transition does not occur during high-speed machining operations, and suggestions are made as to how to modify the Johnson-Cook model of Jaspers and Dauzenberg for this material in order to obtain improved temperature predictions in finite-element simulations of high-speed machining processes.

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Balasubramaniam, Krishnan, and Navin S. Rao. "Nondestructive Ply-Layup Identification for Fiber Reinforced Composites Using Genetic Algorithm." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0515.

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Abstract For multi-oriented layered composite laminates, ply lay-up (stacking sequence) identification is an essential exercise. Lay-up identification falls under the realm of nonlinear inverse problems. Few attempts in this direction are quoted in literature. Of note are the works of Komsky and co-workers [1], where shear wave transmission signals have been used in conjunction with theoretical models or neural networks.

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Basak, D. "Microsecond Time-Resolved Pyrometry during Rapid Resistive Heating of Samples in a Kolsky Bar Apparatus." In TEMPERATURE: Its Measurement and Control in Science and Industry; Volume VII; Eighth Temperature Symposium. AIP, 2003. http://dx.doi.org/10.1063/1.1627218.

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Mates, S. P., S. Banovic, R. Rhorer, T. Burns, E. Whitenton, and D. Basak. "An electrical pulse-heated Kolsky bar technique for high strain rate flow stress measurements of rapidly heated metals." In DYMAT 2009 - 9th International Conferences on the Mechanical and Physical Behaviour of Materials under Dynamic Loading. Les Ulis, France: EDP Sciences, 2009. http://dx.doi.org/10.1051/dymat/2009065.

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Fokina, N. V., V. A. Miazin, and V. A. Miazin. "Use of Mineral Sorbents for the Purification of Natural Environments from Petroleum Products in the Kolsky Northern Region." In Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019). Paris, France: Atlantis Press, 2019. http://dx.doi.org/10.2991/isees-19.2019.147.

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Reports on the topic "Kosky"

1

Corona, Edmundo. Numerical Simulations of the Kolsky Compression Bar Test. Office of Scientific and Technical Information (OSTI), October 2015. http://dx.doi.org/10.2172/1226520.

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Crum, Justin. Finite Element Simulations to Explore Assumptions in Kolsky Bar Experiments. Office of Scientific and Technical Information (OSTI), August 2015. http://dx.doi.org/10.2172/1213306.

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Corona, Edmundo. Numerical simulations of wave propagation in long bars with application to Kolsky bar testing. Office of Scientific and Technical Information (OSTI), November 2014. http://dx.doi.org/10.2172/1172911.

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4

Sanborn, Brett, and Bo Song. Investigation of Energy Dissipation Behavior in Threaded Joints Under Impact Loading Using a Kolsky Tension Bar. Office of Scientific and Technical Information (OSTI), December 2017. http://dx.doi.org/10.2172/1617622.

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Corona, Edmundo, and Bo Song. Wave transmission through silicone foam pads in a compression Kolsky bar apparatus. Comparisons between simulations and measurements. Office of Scientific and Technical Information (OSTI), January 2017. http://dx.doi.org/10.2172/1339492.

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Sanborn, Brett, Bo Song, and Erik E. Nishida. Development of a New Method to Investigate Dynamic Friction Behavior of Metallic Materials Using a Kolsky Tension Bar. Office of Scientific and Technical Information (OSTI), November 2017. http://dx.doi.org/10.2172/1596207.

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7

Viljanen, Ari, Kirsti Kauristie, Tiera Laitinen, Adnane Osmane, Minna Palmroth, Emilia Rintamäki, Mikko Savola, Roope Siirtola, Jonas Suni, and Lucile Turc. Äärimmäiset avaruussäämyrksyt, niiden vaikutukst ja varautuminen. Finnish Meteorological Institute, September 2022. http://dx.doi.org/10.35614/isbn.9789523361638.

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Abstract:

Tässä hankkeessa kerättiin tietoa äärimmäisen voimakkaiden avaruussää-myrskyjen vaikutuksista erilaisiin teknisiin järjestelmiin. Selvitykseen osallistuivat Ilmatieteen laitos, Helsingin yliopisto (HY, Avaruusfysiikan tutkimus) ja Change in Momentum -yritys. Raportissa esitellään laajasta kirjallisuustutkimuksesta kerättyä tietoa voimakkaista myrskyistä ja tietokonesimulaatioiden tuloksia. Raportin loppuosassa käsitellään avaruussäämyrskyihin liittyviä suoria ja välillisiä yhteiskunnallisia riskejä, kuvataan verrokkimaiden kansallisten riskiarvioiden tuloksia jaesitellään varautumisharjoituksiin soveltuva äärimmäisen avaruusmyrskyn skenaario. Kirjallisuustutkimuksessa kiinnitettiin erityistä huomiota avaruus-säämyrskyjen aiheuttamiin ongelmiin sähkönjakelujärjestelmissä niiden laajojen kerrannaisvaikutusten vuoksi. Nopeat vaihtelut Maan magneetti-kentässä synnyttävät jakelujärjestelmiin haitallisia geomagneettisesti indusoituneita (GI) virtoja. Äärimmäisten myrskyjen aikaan saattaa esiintyä jopa kolme kertaa suurempia magneettikentän aikaderivaattoja Euroopassa mitattuihin arvoihin verrattuna. Haittavaikutuksille altis alue ulottuu Keski- ja Etelä-Eurooppaan asti. Meidän tulee siis varautua myrskyjen aiheuttamiin välillisiin vaikutuksiin esim. kansainvälisten toimitusketjujen ongelmien seurauksena, vaikka Suomen sähkönjakelujärjestelmän GI-virtojen sietokyvyn tiedetään olevan hyvä. Koska geomagneettisia myrskyjä riittävän tarkasti kuvaavat aikasarjat ovat verrattain lyhyitä (<150 vuotta), tilastollisissa arvioissa esiintymistodennäköisyyksille esiintyy vielä paljon vaihtelua. Kirjallisuudessa annetut arviot yleisesti vertailukohteena käytetyn vuoden 1859 Carrington-myrskyn kaltaisen ääritapahtuman todennäköisyy-delle seuraavan 10 vuoden sisällä vaihtelevat välillä 0,5–20 %. Hankkeessa testattiin ensimmäistä kertaa Helsingin yliopiston Vlasiator-simulaatiota avaruussäämyrskyjen mallinnuksessa erityisesti satelliittien toimintaympäristöön liittyen. Suurteholaskentaa vaativa Vlasiator on maailman ainoa mallinnustyökalu, joka kattaa koko lähiavaruuden ja kuvaa tarkasti avaruusplasman ionien vaikutuksen myrskyjen kehittymiseen. Simulaatiot osoittivat, että äärimmäisten myrskyjen aikaan geostationaariset ja navigointi-satelliitit menettävät ajoittain magnetosfäärin antaman suojan Auringon hiukkaspurkauksia vastaan. Geostationaaristen satelliittien hiukkasmittausten perusteella HY:n tutkijat arvioivat myös, että korkeaenergiaisten elektronien vuot saattavat olla äärimmäisissä tilanteissa 1–3 kertaluokkaa suuremmat kuin aiempien myrskyjen aikana mitatut satelliittiteknologialle ongelmia aiheuttaneet vuot. Tässä hankkeessa vuosina 2021–2022 tehtyjä Vlasiatorajoja ja muuta tutkimustyötä tarkennetaan ja laajennetaan Suomen Akatemian rahoittamassa “Preparing for the most extreme space weather” -hankeessa vuosina 2020–2023.

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